Threshing-machine.



No. 646,540. Patented Apr. 3, I900.

' B.. JACKLE.

THBESHING MACHINEv (Application m; 3m. 5,1899) (No Model.)

a ',e c""- .,e-- i UNITED STATES PATENT OFFICE.

BARTHOLOMAUS JACKLE, OF LOGHERHOF, GERMANY.

THRESHING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 646,540, dated April 3,1 900.

Application filed January 5, 1899. $erial No. 701,292. (No model.)

with relation to their distance from the cen tral shaft. By this deviceI obtain that the drums cover the whole width of the track and theworking becomes very efficient, which was impossible with the previousarrangement of the drums, because the same always kept the same track.

My invention is illustrated in the accompanying drawings, of whichFigure 1 is an elevation, and Fig. 2 a ground plan. v The constructionis as follows: At the center of a circular roller-track a, constructedof truncated sectors, supported on beams and connected together by hooksand loops, Fig. 2, there is supported a vertical revolving shaft b, witha neck-bearing c at the top and a foot-bearing d. The driving of thisshaft 6 can be effected by ropes and pulleys and by means ofbevel-gearing, as shown in the drawings, or immediately by means ofhorse or other power, the track of which is placed either within theroller-track or preferably in the case of a threshing-machineconstruct-.

ed with more than one story underneath the same. To the upper part ofthe shaft 19 is secured a cross-beam e, and to .the lower surface ofsaid beam is attached the adjustable rail g, the same being supported inloops or holders f. This rail 9 is provided with a toothed rack m andmay be moved to and fro by a gear-wheel n, which meshes with. saidtoothed rack m and is indirectly actuated by means of a crank 0, securedto the shaft b. To this rail g are attached conical threshingrollers h,preferably by means of draw-bars is, connected with one another bydiagonal cross-pieces, which bars are secured to the journals 1' of therollers 77.. The latter, being provided each with a safety-rollerl andactuated by the shaft b, pass over the straw placed on thethreshing-floor, and thereby effect the removal of the grain from thestraw.

The operation of the adjusting mechanism is as follows: The crank 0 bymeans of two bevel-gears actuates the gear-wheel n. The latter moves therack m, with which it is in mesh, and the rack moves the rail g and therollers h.

Having now described my invention, what I claim as new is V A rollerthreshing-machine, comprising a platform, a central vertical shaft, acrossbeam carried by said shaft, a rail 9 supported in loops or holdersf by the cross-beam e, to which rail are attached the conical rollers h,a toothed rack m, secured to said rail, a

BARTHOL. J ACKLE.

Witnesses:

CARL VIzzER, OTTO LEYPoLD.

